5/8 16mm Standard Self Lock Washer

• Self-locking design creates a wedge under the bolt head or nut that maintains clamp load, prevents unintentional loosening, and secures bolted joints even when exposed to dynamic loads and severe vibration
• Vibration proof according to MIL-STD-1312-7/NASM-1312-7
• Resists loosening due to vibration more effectively than split lock washers or nylon insert lock nuts
• Pre-assembled glued pairs are easy to use and can be installed and removed with standard tools
• Extremely versatile - can be used with blind, through and counterbore holes
• Special Delta Protekt® coating is RoHS compliant and provides better corrosion resistance than traditional zinc
• For use with up to Grade 8, Class 12.9 fasteners